Halliburton and Baker Hughes, two big oil services providers, have decided to call off their $35 billion merger, a person briefed on the matter said on Sunday, after a long regulatory review that ended with the Justice Department seeking to block the deal. The deal’s termination could be announced as soon as Sunday night, said the person, who spoke on the condition of anonymity. Halliburton will be required to pay Baker Hughes $3.5 billion as compensation for the breakup, according to the merger agreement. The termination fee, one of the biggest ever, was written into the merger agreement to reassure Baker Highes ... (full story)